2021431120 has 40 divisors (see below), whose sum is σ = 4703386464. Its totient is φ = 807960192.

The previous prime is 2021431103. The next prime is 2021431133. The reversal of 2021431120 is 211341202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2021431094 and 2021431103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105307 + ... + 123013.

Almost surely, 2^2021431120 is an apocalyptic number.

2021431120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021431120 is an abundant number, since it is smaller than the sum of its proper divisors (2681955344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021431120 is a wasteful number, since it uses less digits than its factorization.

2021431120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19147 (or 19141 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2021431120 is about 44960.3282906164. The cubic root of 2021431120 is about 1264.4053238654.

Adding to 2021431120 its reverse (211341202), we get a palindrome (2232772322).

The spelling of 2021431120 in words is "two billion, twenty-one million, four hundred thirty-one thousand, one hundred twenty".